40084723856 has 20 divisors (see below), whose sum is σ = 77695710192. Its totient is φ = 20034218016.

The previous prime is 40084723849. The next prime is 40084723859. The reversal of 40084723856 is 65832748004.

It is a super-2 number, since 2×40084723856² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40084723856.

It is not an unprimeable number, because it can be changed into a prime (40084723859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468290 + ... + 547233.

Almost surely, 2^40084723856 is an apocalyptic number.

It is an amenable number.

40084723856 is a deficient number, since it is larger than the sum of its proper divisors (37610986336).

40084723856 is a wasteful number, since it uses less digits than its factorization.

40084723856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017998 (or 1017992 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 40084723856 in words is "forty billion, eighty-four million, seven hundred twenty-three thousand, eight hundred fifty-six".